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1999 Hyundai Accent Engine Hesitates

Tiny
LEFT_EYE13
  • MEMBER
  • 1999 HYUNDAI ACCENT
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 155,000 MILES
Hello, I have a 99 Hyundai Accent with around 155K miles on it. I just had a new transmission put it changed the spark plugs and spark plug wires. When the engine is cold as I drive away and come to a stop sign and stop the engine will hesitate and sometimes shut off. What could be the cause of this?
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Wednesday, April 21st, 2010 AT 4:15 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lack of acceleration, chugging, hesitating, bogging etc. Could be caused by one of the following below.

Inspect and test all the following listed below and get back with some results

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard.
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Wednesday, April 21st, 2010 AT 5:53 PM

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